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Rhynchosauroides triangulus

Reptilia

Taxonomy
Rhynchosauroides triangulus was named by Gand (1977). It is considered to be a form taxon. It is a trace fossil. Its type locality is La Pissoire Quarries, EF2 tracksite, which is in an Anisian/Ladinian floodplain claystone/sandstone in the Grès d'Antully Formation of France.

Sister species lacking formal opinion data
R. brunswicki

Synonymy list
YearName and author
1977Rhynchosauroides triangulus Gand p. 15
2007Rhynchosauroides triangulus Gand et al. p. 12

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
—Episquamata
superfamilyLacertoideaCamp 1923
genusRhynchosauroidesMaidwell 1911
speciestriangulus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

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Diagnosis
ReferenceDiagnosis
G. Gand 1977Petites empreintes de quadrupèdes lacertoïdes aux doigts médians II.III.IV typiquement échelonnés.
La main est située en arrière du pied, tournée vers l'intérieur de la piste. Elle est triangulaire, plus petite que le pied et, contrairement à cet autopode, aussi large que longue et souvent, plus large que longue.
Les doigts II.III.IV, mal dessinés, se réunissent en arrière pour former un talon triangulaire ou ovale caractéristique. Les orteils I et V ont marqué le sol de manière accidentelle. L'écart séparant les doigts II-IV est nettement plus important que celui du pied.
Le pied ne laisse, en général, que les orteils II.III.IV. Le rapport IV/III est plus grand que celui de la main.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Hendy et al. 2009, Carroll 1988

Age range: base of the Anisian to the top of the Ladinian or 247.20000 to 237.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Anisian - Ladinian247.2 - 237.0France (Saône-et-Loire) Rhynchosauroides sp. (type locality: 36226)